Apple Rubber O-Rings and MicrOring® seals are specified by three characteristics:
SIZE: Standard size are specified by their AS568 (or ISO 3601) dash number. Non-standards are referenced by I.D. and C.S. (cross section or width). Click on the following links to reference the seal size tables you need:
- AS568 Standard O-Ring Sizes – View List
- ISO 3601 Standard Metric O-Ring Sizes – View List
- All Standard and Non-Standard O-Ring Sizes – View List
HARDNESS: This is specified by a two-digit Shore A durometer number, ranging from 25(soft) to 90(hard), depending on the type of elastomer. Our standard durometer is 70 Shore A, except for Viton which is 75 Shore A. Standard durometer tolerance is ±5.
MATERIAL: Our standard range of materials is designated by a two-letter abbreviation for each elastomer. Please refer to our Material Selection Guide or Section 6 for help with the rubber material selection process.
When ordering, please provide us with the following:
- Quantity of o-rings.
- O-ring size by AS568 (ISO 3601) dash number, or I.D. and C.S. if ordering a non-standard.
- Material by hardness and two-digit material abbreviation.
Standard O-Ring - If you were to order 10,000 pieces of an AS568 -110 in 70 Durometer Silicone your order would read:
- 10,000 AS568-110 70 SL
Non-Standard O-Ring - If you were to order 25,000 pieces with an internal diameter of .144" and a cross section of .025" 70 durometer Buna-N your order would read:
- 25,000 .144 I.D. x .025 C.S. 70BN
To Place Orders Or Request Quotations
Phone: 716-684-6560 or 800-828-7745
Online RFQ: Request for Quote
Note: Prior to seal specification, please check for availability. We add to tooling list all the time.